73139031867 has 16 divisors (see below), whose sum is σ = 109259292672. Its totient is φ = 43128666720.

The previous prime is 73139031863. The next prime is 73139031877. The reversal of 73139031867 is 76813093137.

It is not a de Polignac number, because 73139031867 - 2² = 73139031863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73139031863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29949243 + ... + 29951684.

It is an arithmetic number, because the mean of its divisors is an integer number (6828705792).

Almost surely, 2^73139031867 is an apocalyptic number.

73139031867 is a deficient number, since it is larger than the sum of its proper divisors (36120260805).

73139031867 is a wasteful number, since it uses less digits than its factorization.

73139031867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59900978.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 73139031867 in words is "seventy-three billion, one hundred thirty-nine million, thirty-one thousand, eight hundred sixty-seven".